Researchers lead by Dr.Ken Uchino from the Cleveland Clinic in Ohio looked at seven trials 
involving Pradaxa (Dabigatran) that included more than 30,000 patients. This process,
 called a meta-analysis, uses data from published clinical trials to 
tease out a pattern that might not show up in a single study. Researchers found Pradaxa was associated with an increased risk 
of heart attack or acute coronary syndrome (heart attack or angina), 
compared with two other commonly used blood thinners, warfarin 
(Coumadin, Jantoven) and enoxaparin (Lovenox).
As per the claim by the researchers,  those taking Pradaxa, 1.19 percent had a heart attack or 
suffered from acute coronary syndrome compared with 0.79 percent of 
those taking either of the other drugs, they noted. Although there was a 33 percent increase in relative risk for a heart
 attack among those taking Pradaxa, the absolute increased risk -- that 
is, the added risk for any one individual of having a heart attack if on
 Pradaxa -- was 0.27 percent, researchers said.
Pradaxa was approved by the U.S. Food and Drug Administration in 
October 2010 for people with a common heart rhythm problem called atrial
 fibrillation. People with atrial fibrillation are at a higher risk for 
stroke and are often prescribed medication to prevent clotting....
Ref : http://my.clevelandclinic.org/cerebrovascular_center/medical_professionals/clinical_trials.aspx 
 
 
 




